Homebrew/homebrew — pull request #35127 by disassembler (2014-12-19 15:08:22+00:00)
Title: modifying git to use 2.2.1

https://github.com/blog/1938-git-client-vulnerability-announced

Here's a PR for updating git to 2.2.1 in homebrew. Tested locally, works great. Just needs a bottle created.